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hpt366: switch to using pci_get_slot 

Switch to using pci_get_slot() to get to the function 1 of HPT36x/374 chips --
there's no need for the driver itself to walk the list of the PCI devices, and
it also forgets to check the bus number of the device found.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Sergei Shtylyov 2007-02-07 18:17:54 +01:00 committed by Bartlomiej Zolnierkiewicz
parent 90778574c9
commit b4586715d7
1 changed files with 31 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
drivers/ide/pci/hpt366.c
View File

@ -1,5 +1,5 @@
/*
* linux/drivers/ide/pci/hpt366.c Version 0.44 May 20, 2006
* linux/drivers/ide/pci/hpt366.c Version 0.45 May 27, 2006
*
* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
@ -79,6 +79,7 @@
* - prefix the driver startup messages with the real chip name
* - claim the extra 240 bytes of I/O space for all chips
* - optimize the rate masking/filtering and the drive list lookup code
* - use pci_get_slot() to get to the function 1 of HPT36x/374
* <source@mvista.com>
*
*/
@ -1416,24 +1417,24 @@ static void __devinit init_iops_hpt366(ide_hwif_t *hwif)
static int __devinit init_setup_hpt374(struct pci_dev *dev, ide_pci_device_t *d)
{
struct pci_dev *findev = NULL;
struct pci_dev *dev2;
if (PCI_FUNC(dev->devfn) & 1)
return -ENODEV;
while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
if ((findev->vendor == dev->vendor) &&
(findev->device == dev->device) &&
((findev->devfn - dev->devfn) == 1) &&
(PCI_FUNC(findev->devfn) & 1)) {
if (findev->irq != dev->irq) {
/* FIXME: we need a core pci_set_interrupt() */
findev->irq = dev->irq;
printk(KERN_WARNING "%s: pci-config space interrupt "
"fixed.\n", d->name);
}
return ide_setup_pci_devices(dev, findev, d);
if ((dev2 = pci_get_slot(dev->bus, dev->devfn + 1)) != NULL) {
int ret;
if (dev2->irq != dev->irq) {
/* FIXME: we need a core pci_set_interrupt() */
dev2->irq = dev->irq;
printk(KERN_WARNING "%s: PCI config space interrupt "
"fixed.\n", d->name);
}
ret = ide_setup_pci_devices(dev, dev2, d);
if (ret < 0)
pci_dev_put(dev2);
return ret;
}
return ide_setup_pci_device(dev, d);
}
@ -1491,8 +1492,8 @@ static int __devinit init_setup_hpt302(struct pci_dev *dev, ide_pci_device_t *d)
static int __devinit init_setup_hpt366(struct pci_dev *dev, ide_pci_device_t *d)
{
struct pci_dev *findev = NULL;
u8 rev = 0, pin1 = 0, pin2 = 0;
struct pci_dev *dev2;
u8 rev = 0;
static char *chipset_names[] = { "HPT366", "HPT366", "HPT368",
"HPT370", "HPT370A", "HPT372",
"HPT372N" };
@ -1512,21 +1513,21 @@ static int __devinit init_setup_hpt366(struct pci_dev *dev, ide_pci_device_t *d)
d->channels = 1;
pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
if ((findev->vendor == dev->vendor) &&
(findev->device == dev->device) &&
((findev->devfn - dev->devfn) == 1) &&
(PCI_FUNC(findev->devfn) & 1)) {
pci_read_config_byte(findev, PCI_INTERRUPT_PIN, &pin2);
if ((pin1 != pin2) && (dev->irq == findev->irq)) {
d->bootable = ON_BOARD;
printk("%s: onboard version of chipset, "
"pin1=%d pin2=%d\n", d->name,
pin1, pin2);
}
return ide_setup_pci_devices(dev, findev, d);
if ((dev2 = pci_get_slot(dev->bus, dev->devfn + 1)) != NULL) {
u8 pin1 = 0, pin2 = 0;
int ret;
pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2);
if (pin1 != pin2 && dev->irq == dev2->irq) {
d->bootable = ON_BOARD;
printk("%s: onboard version of chipset, pin1=%d pin2=%d\n",
d->name, pin1, pin2);
}
ret = ide_setup_pci_devices(dev, dev2, d);
if (ret < 0)
pci_dev_put(dev2);
return ret;
}
init_single:
return ide_setup_pci_device(dev, d);